389 Directory Server

The enterprise-class Open SourceLDAP server for Linux. It is hardened by real-world use, is full-featured, supports multi-master replication, and already handles many of the largest LDAP deployments in the world. The 389 Directory Server can be downloaded for free, and set up in less than an hour using the graphical console.

Performance

High performance LDAP server that can handle thousands of operations a
second, and tens of thousands of concurrent users.

Reliability

An open source, real-world, hardened stable directory service. As well as a
rich feature set of fail-over and backup technologies.

Scalability

With a database size that is only restricted by diskspace, high throughput
performance, ease of expansion, and multimaster replication, the
389 Directory Server can meet the highest demands.

Welcome, new to the 389 Project?

If you’re new to the project you should start with
our getting started page. It contains
links to builds, source code and documentation. Our
mission page also contains some good
information about our goals and vision.

Key Features

High performance

Multi-Master Replication, to provide fault tolerance and high write performance

The codebase has been developed and deployed continuously by the same team for more than a decade